/*---------------------------------------------------------------------------*\

  FILE........: tfreedv_2400B_rawdata.c
  AUTHOR......: Jeroen Vreeken
  DATE CREATED: 24 May 2020

  FreeDV 2400B rawdata test.

\*---------------------------------------------------------------------------*/

/*
  Copyright (C) 2020 Jeroen Vreeken <jeroen@vreeken.net>

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.


  You should have received a copy of the GNU Lesser General Public License
  along with this program; if not, see <http://www.gnu.org/licenses/>.
*/

#include <stdio.h>

#include "assert.h"
#include "freedv_api.h"

int main(int argc, char **argv) {
  struct freedv *f;
  int i;

  printf("freedv_api tests for mode 2400B\n");

  printf("freedv_open(FREEDV_MODE_2400B) ");
  f = freedv_open(FREEDV_MODE_2400B);
  assert(f != NULL);
  printf("Passed\n");

  printf("freedv_get_mode() ");
  int mode = freedv_get_mode(f);
  assert(mode == FREEDV_MODE_2400B);
  printf("Passed\n");

  printf("freedv_get_n_max_modem_samples() ");
  int max_samples = freedv_get_n_max_modem_samples(f);
  assert(max_samples == 1930);
  printf("%d Passed\n", max_samples);

  printf("freedv_get_n_nom_modem_samples() ");
  int nom_samples = freedv_get_n_nom_modem_samples(f);
  assert(nom_samples == 1920);
  printf("%d Passed\n", nom_samples);

  printf("freedv_get_n_speech_samples() ");
  int speech_samples = freedv_get_n_speech_samples(f);
  assert(speech_samples == 320);
  printf("%d Passed\n", speech_samples);

  printf("freedv_get_n_bits_per_codec_frame() ");
  int codec_bits = freedv_get_bits_per_codec_frame(f);
  assert(codec_bits == 52);
  printf("%d Passed\n", codec_bits);

  printf("freedv_get_n_bits_per_modem_frame() ");
  int frame_bits = freedv_get_bits_per_modem_frame(f);
  assert(frame_bits == 52);
  printf("%d Passed\n", frame_bits);

  printf("freedv_rawdatatx()/freedv_rawdatarx() ");
  int frames = 0;
  {
    short mod[nom_samples * 10];
    /* Note: A codec frame is only 6.5 bytes!
       so the seventh byte will be half empty!
     */
    unsigned char payload[7] = {0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x70};
    for (i = 0; i < 10; i++) {
      freedv_rawdatatx(f, mod + i * nom_samples, payload);
    }
    int nin = 0;
    for (i = 0; i < nom_samples * 9; i += nin) {
      nin = freedv_nin(f);
      unsigned char payload_rx[7] = {0};
      int r = freedv_rawdatarx(f, payload_rx, mod + i);
      if (r) {
        int b;
        for (b = 0; b < 7; b++) {
          if (payload[b] != payload_rx[b]) {
            printf("Received codec bits 0x%02x do not match expected 0x%02x\n",
                   payload_rx[b], payload[b]);
          }
        }
        frames++;
      }
    }
  }
  if (!frames) {
    printf("Did not decode any frames successfully\n");
    goto fail;
  }

  printf("Tests passed\n");
  return 0;
fail:
  printf("Test failed\n");
  return 1;
}